Improvement in reversible sulky-plows



3 Sheet s-Sheetl L. CHAPMAN. Reversible Sulky-Plow.

No. 219,219. tedSept. 2,1879.

o e Smuxmn $1 6% WE m ewe lktv N.FE|'ER5A PHOTD-LITHCGRAPHER.WASHINGTON. D. O.

3 Sheets-Sheet 2. L. CHAPMAN. Reversible S'ulky-Plow.

No; 219,219. Patented s 2',1s79.

, 3 Sheet s-Sheet 3.. L. CHAPMAN. Reversible Sulky-Plbw.

NQ. 219,219. atented Sept. 2,1879.

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UNITED STATES PATENT O FIC LUKE CHAPMAN, 0F cottrNsvittri, CONNECTICUT,ASSIGNOR To THE COLLINS COMPANY; OF SAME PLACE.

IMPROVEMENT IN RE-VE RSlB LE SULKY-PLO-WS.

Specification forming part of Letters Patent No 219.219, dated September2, 1879; application filed January 24, 1879.

To all whom it may concern:

Be it known that I, LUKE CHAPMAN, of Collinsville, in the county ofHartford and State of Connecticut, have invented a certain new anduseful Improvement pertaining to a Reversible Snlky-Plow, of which thefollowing is a specification, reference being had to the accompanyingdrawings, where- Figure 1 is a side view or elevation of the machinewith the plowadjusted as righthand plow. The view is from the furrowside. The plow is not in adjustment for plowing, but-the bottom of theplowis on a level with the bottom of the wheels, which wheels are on thesame level. Fig. 2 is a view of the machine in the same adjustment fromthe opposite or land side. Fig. 3 is a View of the top of the machine inthe same adjust ment. this view. Fig. 4 is a detail view showing thefront side of the latching apparatus for holding the plow to its rightand leftadjustments. rear side of the latching apparatus. Fig. '6 is adetail view showing from the rear the apparatus for shifting the colterto its right and left adjustments.

I will first describe the mechanism, and then point out by claims theparts in which my invention consists.

The letter (t denotes the non-rotating main axle, to each end of whichis pivoted a crankarm, I) 12, hearing each a wheel, 0 0. Thesecrank-arms, and with them the wheels, are

' actuated by handlevers d d, one to each crankarm, and by means of themthe wheels are each raised and lowered, relatively to the main axle, asbecomes necessary in the various adjustments of the machine. are held atdesired adjustments by the springpawls e c, borne by-and sliding in thepawlsockets ff, which are rigid on the main axle, striking into theratchets g g, which are on the crank-arms. The letters h h denotefootlevers, which are used to unmesh the pawls f from the ratchets-g g.n

The plow-beam t is rigidly attached to the sleeve j, which is loose onthe main axle, and from which projects forward a foot-lever, 70,- on

which the operator puts his foot when he would The seat for the rider isnot shown in.

Fig. 5 is a detail view showing the The crank-arms Letters Patent andapplications for Letters Patent of mine.

The right-hand plow I denote by the letter a, the left-hand plow by theletter 0, and the one double plow, made up of these two parts, j by theconjoined letters a 0. Now, these two plows n and 0 are correspondingduplicates joined on a straight line at the top, this line,

of course, being at the top of'plow n, or plow. I

0 when that plow is adjusted for plowing, (denoted'in the drawings bythe broken line nfi) The shape in curvature OfIllQsfQiFlQWS a mrof ispeculiar. -It is circular ywhiclif Ijmeanf that the faces of the plows"M y a double plow, will fit substantiatlyto the periphery ofa roundcylinder; These peculiarities have advantages? In use I make the lowerpart of'what is' t'orthe time being the upperplow supplement the lowerplow, so that the lower plow and the supplementary part of the upperplow are for the time being like one plow larger than either of theplows taken singly. The broken line n denotes the supplementary part ofthe plow o, and the line 0 the supplementary part of the plow to. Theseplows n and 0 may be made separate, and each may or may not have shareand mold-board in separate parts; or the two plows-that is, the onedouble plow-may be made all in one piece. By this supplementary actionof the plows I am enabled to use a smaller double plow than wouldotherwise be practicable, saving cost of metal at first, savin g laborof manipulation in use. and enabling me to bring my plow-beam nearer theground.

The plow-beam is provided with a downwardly-projecting arm, i,preferably attained by curving the beam, as shown, which runs to thecenter of the double plow and is there pivoted to the doubleplow. Aconvenient means of getting this construction is to have the doublestandard 12 attached to the double s conjoinedinto v iustment in themortises.

plow and bearing the pivot-point a", journaled into the arm 73. An arm,8, projects horizontally and rearwardly from the arm 1', and a brace, t,starting from the double plow, is pivoted to the end thereof. The doubleplow swings under the'beam.

Each of the plows is provided with a landside, which serves for alatch-bar. The two are denoted by the letters a a. To the beam isclamped the latch-base o. On both the front and rear sides of thislatch-base is pivoted a latch, 10 w, shouldered in opposite directions,so as to grasp a latch-bar, a, when offered to them. When the operatorwould.

reverse the plow, he first raises the beam, so that the double plow willswing clear, then raises the latches by pulling on the chain ac, and thedouble plow, by its own weight,swin gs down, so that its rear isuppermost. The operator then with a hook grasps the plow he would raiseuppermost, and draws it up till the latches catch and hold it.

When the double plow is reversed the colter must be adjustedaccordingly. The colter z is hung in the colter-frame a, from whichproject upwardly two posts, 12 b, running, respectively,'through themortises c 0 formed on the beam by suitable mortise'blocks d (1, andprovided above and below the mortises with the clamps e e, by which thecolter may be adjusted up and down to take a lessor greater out. Restingby these clamps on the mortise-blocks the colter has a sidewise ad- Theoperator shifts the colter by taking hold of the lever f, pivoted at thefore end on a stationary pivot, also pivoted, through the agency of ashort cross-bar, g, to clamps e, and riding farther back on the ratchbar h, provided with ratchnotches 'i i, made adjustable on the ratch-barand held to place by set-screws.

When the double plow is reversed the line of draft needs to be shiftedaccordingly. A

frame or platform, j, is at the front of the machine. From its frontprojects the draftbar k, on which are the ratch-notches l I, madeadjustable and held to adjustment by staples m m, provided withset-nuts. With the hook before mentioned the operator shifts the clevisn, on which the draft is exerted, from one notch to the other when thedouble plow is reversed.

As a rule all the parts of the machine except the platform and sometimesparts of the wheels are of metal, mainly wrought and cast iron.

With reference to the fourth clause of the following claim I have tostate that I am aware that it is not new in a reversible plow simply tohave a clevis sliding from side to side or to increase or lessen theamount of play; but it is new to have the clevis-notches in blocks whichare adjustable back and forth.

L-claim as my invention 1. The double plow provided with latchbars a a,the plow-beam with arm 8, and the latches w w, with block 1), allcombined to operate substantially as shown and described.

2. The colter z, with its frame a and posts I), the clamps e, the beam2', and thc moi-rises c, all combined to operate substantially as shownand described.

3. The colter z, with its frame and posts, the clamps e, the beam i, themortises c, the lever f, and the ratch-bar It, provided with theadjustable ratch-notches i, all combined to operate substantially asshown and described.

4. The draft-bar lo, the adjustable blocks having the ratch notches l l,and the clevis a, all combined to operate substantially as shown anddescribed.

LUKE CHAPMAN.

, Witnesses:

OLIVER F. PERRY, CHARLES W. THAYER.

